Walker



FIG. 1 is a perspective view of a walker showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom pan view thereof;

FIG. 6 is a right side elevational view thereof; and,

FIG. 7 illustrates the walker in folded status. 

The ornamental design for walker, as shown and described. 